Leoquin EC 250 Tablet belongs to the class of medications called 'quinoline' primarily used to treat malaria. Leoquin EC 250 Tablet gives a degree of protection (prophylaxis) against malaria when people travel to areas where malarial cases exist. It is effective against Plasmodium vivax, Plasmodium ovale, and Plasmodium malariae. Leoquin EC 250 Tablet is not effective against Plasmodium falciparum. Besides this, it also treats amoebiasis (intestinal dysentery) and rheumatic disease (arthritis). 

Leoquin EC 250 Tablet contains 'chloroquine' which acts by killing the malarial parasites, i.e. Plasmodium and stops the formation of the nontoxic heme metabolite hemozoin by the parasite. Heme part of the red blood cells is broken by the malarial, causing parasites. Leoquin EC 250 Tablet  prevents the breakdown of heme part and is actually toxic to the parasite. It kills the parasitic form living in red blood cells that resides in the liver.

Leoquin EC 250 Tablet should be taken as prescribed by your doctor. The dose of Leoquin EC 250 Tablet can vary depending upon your condition and the severity of the infection. The common side effects of Leoquin EC 250 Tablet include vomiting, nausea, hair loss and itchy skin. Everyone need not experience the above side effects. In case of any discomfort, speak with a doctor.

Before starting Leoquin EC 250 Tablet , please inform your doctor if you are allergic to chloroquine or have kidney or liver problems. Do not take Leoquin EC 250 Tablet on your own. Leoquin EC 250 Tablet is safe to use during pregnancy and breastfeeding. Prolonged use of Leoquin EC 250 Tablet may have a severe risk on the heart and retina of the eyes leading to pounding heartbeats and permanent vision problems. 

Leoquin EC 250 Tablet falls into a group of medicines known as antimalarials, indicated for treating or preventing malaria. Leoquin EC 250 Tablet contains chloroquine, which belongs to quinoline. It works by preventing the formation of the nontoxic heme metabolite hemozoin by the parasite. Due to this, the parasite dies from its own toxic by-products released due to haemoglobin's metabolism. Leoquin EC 250 Tablet is also indicated for the treatment of rheumatoid arthritis and autoimmune diseases like lupus and intestinal infection caused by amoeba (amoebiasis).

Leoquin EC 250 Tablet does not respond well against all malaria strains, so consult with your doctor if you do not respond well to Leoquin EC 250 Tablet . This medicine can affect heart health, especially if a person is taking medications, including the antibiotic azithromycin and anticancer like tamoxifen. An individual must consult with the doctor if they are noticing fast or pounding heartbeats and sudden dizziness. This medicine cannot be used for a long duration as it may cause irreversible damage to the eye that could lead to vision problems. Leoquin EC 250 Tablet cannot be used in persons who have heart disease, heart rhythm disorder, diabetes, a stomach disorder, an allergy to quinine, liver or kidney disease, psoriasis, alcoholism, porphyria (a genetic enzyme disorder that affects the skin or nervous system), a genetic enzyme deficiency called glucose-6-phosphate dehydrogenase (G6PD) deficiency. Consult with your doctor if you are pregnant or breastfeeding as this medicine could only be used if prescribed by the doctor. 

Do not take Leoquin EC 250 Tablet if you have had a previous reaction to Leoquin EC 250 Tablet , or if you have certain eye problems involving your retina. Tell your healthcare provider about any problems you may have with your eyes.